joanwalden42 joanwalden42
  • 14-02-2020
  • Social Studies
contestada

What are the three essential chemical elements in the biosphere?
nitrogen, oxygen, and carbon
carbon, oxygen, and helium
oxygen, carbon, and iron
nitrogen, carbon, and hydrogen

Respuesta :

zinnia30
zinnia30 zinnia30
  • 14-02-2020

Answer:

hydrogen carbon oxygen nitrogen

Explanation:

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